[LLVMbugs] [Bug 13588] New: Bytemark LU DECOMPOSITION 20% slower than gcc

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13588

             Bug #: 13588
           Summary: Bytemark LU DECOMPOSITION 20% slower than gcc
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: wbrana at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


http://www.tux.org/~mayer/linux/nbench-byte-2.2.3.tar.gz

clang trunk
LU DECOMPOSITION    :            2170  :     112.42  :      81.18
gcc 4.7.2 pre
LU DECOMPOSITION    :          2702.9  :     140.02  :     101.11

CFLAGS = -ggdb -Wall -O3 -funroll-loops -g0 -march=core2 -fomit-frame-pointer
-ffast-math -mssse3 -fno-PIE -fno-exceptions -fno-stack-protector -static

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